Tag Archive for: prognosis

Metastatic Breast Cancer: Debunking Common Misconceptions

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Metastatic Breast Cancer: Debunking Common Misconceptions from Patient Empowerment Network on Vimeo.

Dr. Julie Gralow debunks common misconceptions about metastatic breast cancer, including the metastatic diagnosis itself and why genetic tests are important. 

Dr. Julie Gralow is the Jill Bennett Endowed Professor of Breast Medical Oncology at the University of Washington, Fred Hutchinson Cancer Research Center, and the Seattle Cancer Care Alliance. More about this expert here.

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Transcript:

Katherine:                  

All right. Dr. Gralow, when you meet with patients, what are some of the more common misconceptions that you hear related to diagnosis?

Dr. Gralow:                

Well, I think people do confuse – especially at an early diagnosis – that the metastases, the travel to the local lymph nodes, is not the same as a metastatic breast cancer, so we spend some time talking about how it’s still curable and not considered a distant metastasis if the lymph nodes are in the armpit or up above the collarbone, and so, that’s something that we spend some time talking about.

This whole term of “metastatic recurrence” – unfortunately, when you start looking online and get your information from Dr. Google, you read right away that it’s no longer curable, and in 2020, yes, that’s true. That’s probably the most specific statement that we can make. We are not going with curative intent, which means we treat for a defined amount of time, and then all the disease goes away, and we stop treatment, and then you go on with your life, and it never comes back. That would be cure.

But, I think it’s really important to point out that much of metastatic breast cancer can be highly treatable, and what we hope to do – and certainly, at least a subset of metastatic breast cancer – we want to convert it more to what we would call a chronic disease, and so, think of it more like hypertension, high blood pressure, or diabetes. These are diseases that we generally don’t cure with treatment, but that we can control with drug therapy, which sometimes has to be adjusted, and if we don’t control it, we can get some bad complications.

So, that’s not all metastatic breast cancer, unfortunately – we can’t convert all of it to something where we can use a therapy for a long time that keeps it in check and where you have a pretty good quality of life – but we’re hoping that more and more, we’re getting targeted therapies and more specific treatments to patients so that we can convert more patients to a more chronic kind of situation.

What Are Essential Genetic Tests for Metastatic Breast Cancer Patients?

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What Are Essential Genetic Tests for Metastatic Breast Cancer Patients? from Patient Empowerment Network on Vimeo. 

Genetic tests can help guide metastatic breast cancer care. Dr. Julie Gralow discusses essential genetic tests for metastatic breast cancer, and how results impact treatment decisions.

Dr. Julie Gralow is the Jill Bennett Endowed Professor of Breast Medical Oncology at the University of Washington, Fred Hutchinson Cancer Research Center, and the Seattle Cancer Care Alliance. More about this expert here.

See More From INSIST! Metastatic Breast Cancer

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How Genetic Mutations Affect Metastatic Breast Cancer Disease Progression and Prognosis

Metastatic Breast Cancer: Debunking Common Misconceptions

What Could Metastatic Breast Cancer Genetic Testing Advances Mean for You?

 

Transcript:

Katherine:                  

For a patient to get diagnosed, what are the essential tests?

Dr. Gralow:                

So, we’re talking about metastatic breast cancer here, and in the U.S., maybe up to 10% or slightly less of breast cancer is technically Stage 4 or metastatic at diagnosis. That means at the time we first found it in the breast, it had already spread beyond. So, an important thing that we’ll do with a newly diagnosed breast cancer is especially if there are a lot of lymph nodes are involved or the patient has symptoms that might say there’s something in the bone, liver, or lung is staging.

So, we’ll use scans – maybe a CAT scan, bone scan, or PET scan – and we will look at whether the disease has gone beyond the breast and the lymph nodes, and if so, where. So, maybe 8-10% of breast cancer diagnosed in the U.S. already has some evidence that it has spread beyond the breast, but the most common way that metastatic breast cancer happens is that a patient was diagnosed possibly years and years ago, treated in the early-stage setting, and now it comes back, and that is the most common presentation for metastatic breast cancer, and sometimes that can be due to symptoms.

As I said, if it comes back in the bone, maybe that’s bone pain. If it’s in the lung, it’s a cough. There are symptoms. Sometimes, it’s because we’ve done a blood test or something and we find some changes there.

And so, when a breast cancer has recurred, it’s really important to document that it’s really breast cancer coming back, first of all, and so, if we can, we generally want a biopsy, and we want to stick a needle in it if it’s safe to do, and look and verify that it looks like breast cancer, and also, it’s really important that we repeat all those receptors that we talked about from the beginning because it can change.

So, a cancer up front 10 years ago could have been positive for estrogen receptor, but the only cells that survived – mutated, changed – were estrogen receptor negative, so what comes back could be different. So, it’s really critical to get that biopsy, repeat the estrogen/progesterone receptor and HER2, and also, in an ideal world, now that it’s 2020 and we’re moving more toward genomics, to do a full genomic profile and look for other changes and mutations that could drive our therapeutic options.

So, staging, knowing where the cancer is, getting a good baseline by understanding where it is and how big it is so that we can follow it and hopefully see that it’s responding to treatment, and then, repeating all of the biology components so that we know what the best options are for treatment are really critical.

Katherine:                  

Right. How can patients advocate for a precise breast cancer diagnosis, and why is that important?

Dr. Gralow:                

Well, all those things I just mentioned are key. Knowing exactly where it is so that we can monitor it – for example, if the cancer has come back in the bones, we would add what we call a bone modifying agent, a drug like zoledronic acid or denosumab – Zometa or Xgeva – which can suppress bone destruction from the cancer, but if it’s not in the bone, we wouldn’t add that.                                   

And, we want to have a good look everywhere so that we can see if it’s responding because sometimes, the tumor can respond differently in one area than another. Also, I think it’s really important to know what your treatment options are by doing that biopsy, getting a full panel, and looking at potentially hundreds of genes that could be mutated, deleted, or amplified so that we know what our treatment options are.

And, we’re not going to use all the treatment options up front, so it’s helpful for knowing that if this treatment doesn’t work or is too toxic, what are the second-line or third-line options? So, we make sure that there’s what we call good staging up front so we know where the cancer is, and then we make sure that we’ve looked at it as best we can in 2020 with all the genomics.

 That would give us the best chance of being tailored – individualized – to the tumor. Sometimes, if we can’t biopsy it, like with a needle that would go into a liver spot, then increasingly, we’re looking at what we call liquid biopsies, and that can be drawing the blood and seeing if we can find parts of the tumor, whether it be the DNA or the RNA that’s floating around in the blood, and sometimes we can get that information out of the blood as well.

Metastatic Breast Cancer Staging: What Patients Should Know

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Metastatic Breast Cancer Staging: What Patients Should Know from Patient Empowerment Network on Vimeo.

Breast cancer expert Dr. Julie Gralow discusses metastatic breast cancer staging, including prognostic staging, breast cancer subtypes, and the meaning of metastasis.

Dr. Julie Gralow is the Jill Bennett Endowed Professor of Breast Medical Oncology at the University of Washington, Fred Hutchinson Cancer Research Center, and the Seattle Cancer Care Alliance. More about this expert here.

See More From INSIST! Metastatic Breast Cancer

Related Resources:

 

What Are Essential Genetic Tests for Metastatic Breast Cancer Patients?

Metastatic Breast Cancer: Debunking Common Misconceptions

What Could Metastatic Breast Cancer Genetic Testing Advances Mean for You?

 

Transcript:

Dr. Gralow:                

The staging of breast cancer has traditionally been by something we call anatomic staging, which has the tumor size, the number of local lymph nodes involved, and whether it has metastasized beyond the lymph nodes. So, that’s TNM – tumor, nodes, metastases. And so, that’s the classic staging, and based on combinations of those things, you can be a Stage 0 through Stage 4. Stage 0 is reserved for ductal carcinoma in situ, which is a noninvasive breast cancer that can’t generally spread beyond the breast, so that’s Stage 0, and then we go up for invasive cancer.

Interestingly, just a couple years ago, the big group that oversees the staging of cancers decided that in breast cancer, that TNM – the size, the lymph nodes, and the location beyond the lymph nodes – is not good enough anymore, so they came up with a proposal for what we call a clinical prognostic stage, which is a companion to the traditional TNM staging.

What they were getting at here was it’s not just how big your cancer is, how many lymph nodes, or whatever, it’s also at the biology of your cancer. So, this new clinical prognostic stage takes into account the estrogen and progesterone receptor of your cancer, the HER2 receptor at the grade, which is a degree of aggressiveness, and then, if your tumor qualifies, one of the newer genomic testing profiles that we use in earlier-stage breast cancer, such as the Oncotype DX 21-gene recurrence score or the MammaPrint 70-gene assay.

So, all of that goes into account now, and the whole point here is that the estrogen receptor, the HER2, the grade, and some of these genomics may actually make more difference than how many lymph nodes you have, where the cancer is, and how big it is, so it’s not just the size, but also the biology of the cancer that we’re trying to include in the new staging systems.

Katherine:                  

In this program, Dr. Gralow, we’re focusing on metastatic breast cancer. Would you explain when breast cancer is considered to have metastasized?

Dr. Gralow:                

That’s a great question because technically, if the lymph nodes in the armpit – the axillary area – are involved, that does represent spread beyond the breast, but if it stays in the local lymph node areas, it’s not technically called a metastatic or Stage 4 breast cancer. So, metastatic breast cancer would have traveled beyond the breast and those local lymph nodes, and some common sites would be to the bone, to the lungs, to the liver, less commonly – at least, up front – to the brain, and it could also travel to other lymph node groups beyond those just in the armpit and the local chest wall area as well.

Katherine:                  

What about subtypes? How are they determined?

Dr. Gralow:                

The main way that we subtype breast cancer right now is based on the expression of estrogen and progesterone receptor, the two hormone receptors, and the HER2 receptor, the human epidermal growth factor receptor. So, to date, those are the most important features when we subtype, and so, a tumor can either express estrogen and progesterone receptor or not, and it can overexpress or amplify HER2 or not, and if you think that through, you can come up with four different major subtypes, in a way, based on estrogen receptor positive or negative and HER2 positive or negative.

When all three of those are negative, we call that triple negative breast cancer, and that’s about 18-20% of all breast cancers as diagnosed in the U.S. And then, when all three are positive, we sometimes call it triple positive, and the reason that we subtype is because we know that those different subsets act differently and that we have different drugs to treat them with, and we’ve got great drugs in the categories of hormone receptor positive and HER2 positive, and increasingly, some recently hope in a new drug approval or two in triple negative breast cancer as well.

Ask Your Doctor About These Essential Genetic Tests for CLL

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Ask Your Doctor About These Essential Genetic Tests for CLL from Patient Empowerment Network on Vimeo.

Genetic testing results can impact a chronic lymphocytic leukemia (CLL) patient’s treatment options and provide a deeper understanding into their disease. Dr. Steven Coutre, a CLL specialist, reviews essential tests and explains their role in CLL care.

Dr. Steven Coutre is a Professor of Medicine in the Hematology Department at Stanford University Medical Center. Learn more about this expert here.

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Transcript:

Dr. Steven Coutre:

In terms of testing for CLL, additional testing, of course, diagnostically, it’s generally not a challenge. It’s very straight-forward. A test that we call Flow Cytometry on a blood sample is usually sufficient to establish the diagnosis. Very, very uncommonly would a bone marrow exam be needed, for example. And in routine practice, also, we don’t necessarily give CT scans to establish a diagnosis or even to, as people say, stage the disease. It really isn’t necessary in most cases.

However, we do have a staging system that correlates with the extent of the disease and that’s simply based on our exam and blood counts, but people also want more information. They wanna know how they’re gonna do, specifically. So, we can add additional tests, genetic testing as people often call it, that can further subdivide individuals into groups that give you additional information on how you might do, meaning if you’re without symptoms, and an observation is recommended, you wanna know, “Well, how long is it gonna be before I need treatment?” Although our staging system gives that information, we can refine that further.

One test is the so-called FISH test, which looks at specific chromosome abnormalities, and the second test that’s generally used is called the IGHV Mutation Assay. That’s really looking at what’s called the mutational status of your immunoglobulin genes. So, it’s really those two broad categories that are most relevant.

Now, we don’t necessarily advocate doing that testing on everyone at the time of diagnosis. Certainly, not everyone who is without symptoms, where we’ve already decided that treatment is not indicated. So, as you can imagine, you can do that testing. You might come up with a profile that’s less favorable. And then, instead of the watch and wait approach, or as folks like to call it, “watch and worry approach,” you worry even more. But then, of course, if you have a favorable profile, then you’re happier. You’re more pleased.

However, we don’t do anything differently regardless of what those tests show, at least at current state. Compared to a decision that’s already been made about treat or not treat. We do, however, strongly advocate getting that testing at the time of treatment, and sometimes, repeating some of the testing with subsequent treatment, when you require treatment, say, a second time, in some cases. So, very important to have a discussion about these tests and what information you will get from them.

Well, we’ll often see patients who are coming for another opinion about their disease. Perhaps they’ve been recently diagnosed, and they have been advised for observation, so, it’s, of course, natural to ask whether that’s a reasonable approach. And in that context, other testing often comes up in the conversation. Perhaps they had the testing done, the FISH, and the mutational testing, and they wanna know what it means, or actually we see some results that have been obtained and we ask them about it. And there’s very often confusion, or really lack of information about what they mean.

So, we really try to discuss that issue. That issue of testing with each and every patient, whether or not they’ve had it done, really trying to let them know what it means. That way they’re fully informed, and in some cases, people feel very strongly that they would like to have it done, even through they realize that we’re not gonna act on it at that point. So, I think pretty much for all patients, it should be part of the initial discussion.

Again, in terms of genetic testing are these tests that I discussed. It’s important to understand what information they give you so you understand why your physician may be making a distinction between one therapy versus another. It is very, very important to get that testing, if somebody is talking about using chemotherapy, for example, hopefully. That’s quite uncommon. But with our newer agents, we know that they work broadly despite those other features.

Nevertheless, I think it’s important for a patient to at least expect the discussion about these tests. We’re not asking you to go to your physician and ask that they be done in all cases, but really understand perhaps why your physician recommended that they not be done at that particular time. 

Advocate for These CLL Genetic Tests

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Advocate for These CLL Genetic Tests from Patient Empowerment Network on Vimeo.

Genetic testing results can influence a chronic lymphocytic leukemia (CLL) patient’s treatment options and provide a more in-depth understanding into their disease. Dr. Philip Thompson, a CLL specialist, reviews key tests that CLL patients should advocate for.

Dr. Phillip Thompson is an Assistant Professor in Medicine in the Department of Leukemia at The University of Texas MD Anderson Cancer Center. Learn more about this expert here.

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Transcript:

Dr. Philip Thompson:

I would say that I see a lot of patients that have previously seen an oncologist closer to home and then traveled to MD Anderson for a second opinion. And so, I can say that over the last three or four years, there’s definitely a significant change in the awareness of physicians in general about doing genetic testing for CLL.

So, in particular, almost everybody will get a FISH test, which I didn’t always see three or four years ago. And more patients are now having IGHV mutation status analysis done. The thing that I see that is very rarely done, though, is what we call next-generation sequencing, or NGS, that looks for mutations in individual genes, and most importantly, in the TP-53 gene that I mentioned.

So, I would – and the other thing that often isn’t done is what we call a carrier tag, which is a routine analysis of the chromosomes of the CLL cells. And it requires some special techniques for the lab to get it to work in CLL. But that can actually provide additional information compared to just FISH.

So, I would suggest to a patient, particularly if they’re gonna do a bone marrow biopsy on you, which is an invasive procedure, that you really try to get some clarity around what tests are going to be ordered on that beforehand. And if you’ve just been diagnosed and you’ve got early-stage CLL, you can make an argument about how many of these tests are absolutely necessary to start with. Because the biggest utility in these tests is in determining what type of treatment you’re going to have.

If you’re not immediately going to have treatment, they don’t necessarily change what your oncologist is going to do. They’re going to monitor you over time and see if your disease is getting worse or not. But I still think they’re useful to have the – a lot of them are useful, particularly the IGHV mutation status and FISH are useful to have at initial diagnosis. Because they give you a really good idea of what the biology of this disease is – this patient’s disease is like and how quickly they’re likely to progress, and that may change how frequently you monitor the patient.

But anyway, I would say it’s important to ask them what genetic testing you are gonna get. And that you ask – have an understanding of what can be ordered.

 And in particular, if you’re going to get treatment, you must ask for TP-53 sequencing, FISH for 17-P deletion, and IGHV mutation status because those three things are essential to determine the optimal treatment that you have. And you shouldn’t feel shy about asking, are those things going to be done.   

What Do Genetic Tests Reveal About My CLL Treatment Options?

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What Do Genetic Tests Reveal About My CLL Treatment Options? from Patient Empowerment Network on Vimeo.

 
Genetic testing results can influence a chronic lymphocytic leukemia (CLL) patient’s treatment options and provide a more in-depth understanding into their disease. Dr. Phillip Thompson, a CLL specialist, reviews three important testing results that can impact treatment timing and approaches.
 
Dr. Phillip Thompson is an Assistant Professor in Medicine in the Department of Leukemia at The University of Texas MD Anderson Cancer Center. Learn more about this expert here.

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Transcript:

Dr. Philip Thompson:

So, there are three main things we look at before initiating treatment in a patient.

One is what we call the IGHV mutational status of the patient. And this basically splits people into types of CLL. So-called mutated or unmutated. And this is a relatively complex concept. Basically, what happens in normal B-lymphocyte development, so B-lymphocytes are part of your immune system. Their job is they have a probe on the surface of the cell that looks for invading microorganisms. And when they find an invader, this probe binds to the organism. And then the cell actually undergoes, as part of its normal development, a process of mutation so that it makes the best possible antibody to fight that infection. So that’s a normal process that the B-lymphocyte undergoes when fighting infections.

So, CLL can arise from what we call a mature antigen-experienced mutated B-cell, or it can arise from a naive B-cell that has never gone through that process, in which case, it will have an unmutated IGHV. Now, it’s kind of counterintuitive, but the patients with a mutated IGHV generally have better outcomes. That type of CLL is less proliferative, it doesn’t grow as fast, and it also tends to respond better to certain types of treatment. Particularly, it responds better to chemotherapy than patients with unmutated IGHV.

However, the difference between those two is less important if you’re getting some of the newer therapies. Particularly, it seems like if you receive BTK inhibitors, it doesn’t really matter if you have mutated or unmutated IGHV, patients are responding very well. But I like to know whether they have a mutated or unmutated IGHV because it’s helpful for giving the patient an expectation of how their disease is likely to behave biologically.

But also, if they have a mutated they may be a candidate for chemotherapy-based treatment. Whereas if they have unmutated IGHV, I don’t use chemotherapy for those patients.

 

The second thing is a test called FISH. And FISH looks for chromosome abnormalities. So, we have 46 chromosomes, 23 from our mother and 23 from our father. They contain all of our genetic information. And in malignant diseases, you can have major abnormalities in the chromosomes of the cancer cells. Not in the rest of your body, just in the cancer cells. And they happen because of errors that are made when the cells are replicating their chromosomes.                                                                 

So, in CLL, there are four common abnormalities that we look for in a test called FISH, and they tell us a lot about the patient’s prognosis. And there’s one in particular that we look at that has a major impact on our decision making, and that’s a deletion on Chromosome 17.

So, a missing piece of Chromosome 17. And the reason that that’s important is it tends to be an aggressive form of CLL. It also does not respond to chemotherapy, or if it does, the responses are very, very short-lived. So basically, that’s a contrary indication to receiving chemotherapy for your CLL when you should receive another form of therapy if you have a 17-P deletion.

And then, finally, we look at a type of – we look for individual gene mutations in the cells. And that’s different from IGHV mutational status, although the names are kind of similar.

So, in CLL, there are numerous genes that can be affected by mutations that alter the function of the gene. In some cases, it makes the gene non-functional; in some cases, it changes the function in some way that perturbs the normal functioning of the cell and contributes to the malignant transformation of that cell.

So, the most important one, again, relates to a gene called TP-53. So that’s the gene that is deleted if you lose a piece of Chromosome 17. It’s located on the P arm of chromosome 17. If you mutate that gene, it has the same consequences essentially for the cell as if you delete it by deleting a piece of the chromosome. And the two often go together, so you’ll have a 17-P deletion and a mutation of the TP-53 gene on your other Chromosome 17. Because remember, you have two chromosome 17s. So, if you lose both, it may be even worse than only having one. However, it does seem that if you only have a mutation on the TP-53 gene, but you don’t have a deletion on Chromosome 17, that the responses of those patients to chemoimmunotherapy are still really poor.

So, it’s very important to find out, do you have a TP-53 mutation as well as do you have a deletion on Chromosome 17 before you embark on treatment, particularly if that treatment is going to be chemotherapy. So, those are the three things that we look for before    we start any patient on therapy.